EP 2215440 A2 20100811 - CIRCUIT FOR A MICROMECHANICAL STRUCTURE-BORNE SOUND SENSOR AND METHOD FOR OPERATING A MICROMECHANICAL STRUCTURE-BORNE SOUND SENSOR
Title (en)
CIRCUIT FOR A MICROMECHANICAL STRUCTURE-BORNE SOUND SENSOR AND METHOD FOR OPERATING A MICROMECHANICAL STRUCTURE-BORNE SOUND SENSOR
Title (de)
SCHALTUNG FÜR EINEN MIKROMECHANISCHEN KÖRPERSCHALLSENSOR UND VERFAHREN ZU DESSEN BETRIEB
Title (fr)
CIRCUIT DESTINÉ À UN CAPTEUR DE BRUIT STRUCTUREL MICROMÉCANIQUE ET PROCÉDÉ D'UTILISATION D'UN CAPTEUR DE BRUIT STRUCTUREL MICROMÉCANIQUE
Publication
Application
Priority
- EP 2008063051 W 20080930
- DE 102007057136 A 20071128
Abstract (en)
[origin: WO2009068345A2] The invention relates to a circuit for a micromechanical structure-borne sound sensor and a method for operating said sensor, wherein voltages are applied by means of a voltage generator to at least one micromechanical element serving to detect structure-borne sound such that a change to the micromechanical element occurs. The invention further relates to an analysis circuit, which records and analyses at least one electrically detectable parameter of the micromechanical element using a sampling rate. The at least one parameter is then altered as a result of the change. The invention also proposes a clock generator provided for generating the sampling rate and generating the cycle. A frequency generator serves for generating the cycle at least temporarily for the test operation, wherein the frequency generator generates the cycle as a multiple or as a factor of the sampling rate.
IPC 8 full level
G01H 11/06 (2006.01)
CPC (source: EP US)
G01H 11/06 (2013.01 - EP US)
Citation (search report)
See references of WO 2009068345A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102007057136 A1 20090604; CN 101878413 A 20101103; EP 2215440 A2 20100811; RU 2010126059 A 20120110; US 2011041614 A1 20110224; WO 2009068345 A2 20090604; WO 2009068345 A3 20090820
DOCDB simple family (application)
DE 102007057136 A 20071128; CN 200880118174 A 20080930; EP 08804899 A 20080930; EP 2008063051 W 20080930; RU 2010126059 A 20080930; US 74486408 A 20080930